CN109521667A - A kind of automatic prover time device and method - Google Patents
A kind of automatic prover time device and method Download PDFInfo
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- CN109521667A CN109521667A CN201811542141.0A CN201811542141A CN109521667A CN 109521667 A CN109521667 A CN 109521667A CN 201811542141 A CN201811542141 A CN 201811542141A CN 109521667 A CN109521667 A CN 109521667A
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- G—PHYSICS
- G04—HOROLOGY
- G04R—RADIO-CONTROLLED TIME-PIECES
- G04R20/00—Setting the time according to the time information carried or implied by the radio signal
- G04R20/14—Setting the time according to the time information carried or implied by the radio signal the radio signal being a telecommunication standard signal, e.g. GSM
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Abstract
The invention discloses a kind of automatic prover time device and methods.The device includes: clock module, for showing current time；Wireless data transmission module, for obtaining GPS time by the mobile data network of CDMA telecommunications standard；CPU module is connect with the clock module and the wireless data transmission module respectively, is used for the current time according to the CPS time calibration；LED display is connect with the CPU module, for showing the time after calibrating.The present apparatus or method can it is free from cdma base station, obtain the GPS standard time indirectly, realize automatic correcting time.
Description
Technical field
The present invention relates to automatic prover time fields, more particularly to a kind of automatic prover time device and method.
Background technique
It is existing on the market more accurately can be there are two types of the Chronograph timepieces (or time set) of automatic prover time:
First is that directly receiving the data of satellite using GPS receiver module, and therefrom acquisition time information；GPS satellite clock
Be using GPS or Beidou satellite system as time reference, output and second (1PPS) of UTC time high level of synchronization, point (1PPM), when
(1PPH) isopulse information, GPS satellite clock have been applied to many fields, but since GPS signal is compared with vulnerable to blocking and shield
Cover, so if GPS signal receiving device in building, can be difficult to receive effective GPS signal, cause equipment cannot and
When prover time.Processing method is usually to install very long external antenna additional in the weak place of some GPS signals, and installation is relatively more tired
It is difficult.That is:
(1), GPS signal blind area is more；
(2), GPS signal is on the weak side.
The wherein drawback more than signal blind zone is easy to influence equipment by working environment, and many place cisco unity malfunctions are given
Normal time metering brings very big puzzlement.
Another common Chronograph timepiece is long wave clock, and the automatic prover time of this device is by long wave clock synchronization electricity
Platform, domestic this radio station quantity is seldom (it is reported that domestic only central plain area has one at present) at present, therefore long wave clock synchronization signal pair
In the outlying district in China, reception is unsatisfactory.Simultaneously as signal strength is weaker, therefore many user's discoveries, will grow
Wave clock, which is placed on some room, to move on to the even original room in another room position distant far from window just with clock synchronization
It can not automatic clock synchronization.Therefore this Chronograph timepiece equally has the shortcomings that blind area is more.
Summary of the invention
The object of the present invention is to provide a kind of automatic prover time device and methods, obtain freely, indirectly from cdma base station
The GPS standard time is taken, realizes automatic correcting time.
To achieve the above object, the present invention provides following schemes:
A kind of automatic prover time device, comprising:
Clock module, for showing current time；
Wireless data transmission module, for obtaining GPS time by the mobile data network of CDMA telecommunications standard；
CPU module is connect with the clock module and the wireless data transmission module respectively, when for according to the CPS
Between calibrate the current time；
LED display is connect with the CPU module, for showing the time after calibrating.
Optionally, the CPU module includes:
Setting apparatus, for setting error threshold；
Calculator is connect with the clock module and the wireless data transmission module respectively, when for calculating described current
Between error with the GPS time；
Comparator is connect with the setting apparatus and the calculator respectively, for the error and the error
The size of threshold value, and comparison result is sent to calibrator；
Calibrator, for calibrating the current time according to the comparison result.
Optionally, the model MSP430 of the CPU module.
Optionally, the model DTM-228D of the wireless data transmission module.
Optionally, further includes: clock synchronization indicator light, the clock synchronization indicator light are connect with the CPU module, the clock synchronization instruction
Lamp issues green light in the CPU module prover time.
Optionally, further includes: battery and power supply processing circuit；The battery is connect with the power supply processing circuit, institute
It states power supply processing circuit to connect with the CPU module, the clock module and the wireless data transmission module respectively, the power supply
Processing circuit is used to the voltage that the battery provides being converted to operating voltage, be the CPU module, the clock module and
The wireless data transmission module provides voltage.
Optionally, further includes: low-voltage alarm lamp, the low-voltage alarm lamp is connect with the battery, when the battery
Voltage lower than setting low pressure threshold when, the low-voltage alarm lamp issues feux rouges.
Optionally, further includes: key, the key are connect with the CPU module, when the key is used for manual calibration
Between.
Optionally, further includes: spare simulative serial port is connect with the CPU module, after being used for transmission the calibration when
Between.
A kind of automatic prover time method, the method are applied to above-mentioned automatic prover time device, which comprises
Obtain current time；
Obtain GPS time；
Judge the error of the current time and the GPS time whether within the scope of error threshold；
If so, showing the current time；
If it is not, the current time according to the CPS time calibration, and show the current time after calibration.
Compared with prior art, the present invention has following technical effect that
(1) can it is legally free from cdma base station, obtain the GPS standard time indirectly.Because of present cellular carrier
The wireless base station of (such as telecommunications, movement) can cover the gregarious each place firmly of domestic someone, almost without blind area, therefore,
Obtaining GPS clock from base station is reliable, stable, non-blind area；
(2) also there is timer internal and LCD display unit simultaneously, normal timing and can indicate the time；
(3) has the function of the automatic clock synchronization of timing, the time calibrates automatically, does not need manual intervention；
(4) low power dissipation design is used, so that the device can be with long-play；
(5) on the whole, the present apparatus has the characteristics that simple installation, automatic correcting time, without operating cost.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural block diagram of the automatic prover time device of the embodiment of the present invention；
Fig. 2 is the flow chart of the automatic prover time method of the embodiment of the present invention；
Fig. 3 is the main program block diagram of the automatic prover time device of the embodiment of the present invention；
Fig. 4 is keystroke handling of embodiment of the present invention program chart；
Fig. 5 is time calibration of embodiment of the present invention program chart；
Fig. 6 is the low electric energy alert program block diagram of the embodiment of the present invention；
Fig. 7 is the low electric energy alert program block diagram of the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of automatic prover time device and methods, obtain freely, indirectly from cdma base station
Take GPS standard time, automatic correcting time.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
As shown in Figure 1, a kind of automatic prover time device, comprising: clock module 1, wireless data transmission module (CDMA module
2), CPU module 3LED and display screen 4.
Clock module 1 is for showing current time；Wireless data transmission module 2 is used for the mobile data by CDMA telecommunications standard
Network obtains GPS time；The model DTM-228D of the wireless data transmission module.CPU module 3 respectively with the clock module 1
And the wireless data transmission module 2 connects, and is used for the current time according to the CPS time calibration.The type of the CPU module
Number be MSP430.LED display 4 is connect with the CPU module 3, for showing the time after calibrating.The type of LCD display 4
Number be LCD12864.
The CPU module 3 includes: setting apparatus, calculator, comparator and calibrator.Setting apparatus is for setting error threshold
Value；Calculator is connect with the clock module and the wireless data transmission module respectively, for calculating the current time and institute
State the error of GPS time；Comparator is connect with the setting apparatus and the calculator respectively, is used for the error and institute
The size of error threshold is stated, and comparison result is sent to calibrator；Calibrator is described current according to comparison result calibration
Time.
It further include clock synchronization indicator light 5, the clock synchronization indicator light 5 is connect with the CPU module 3, and the clock synchronization indicator light exists
Green light is issued when the CPU module prover time.
Further include: battery 6 and power supply processing circuit 7.Battery 6 includes the 18650ICR2P battery of two section 3.7V；Power supply
Processing circuit 7 includes LM7805 and AMS117-3V3.The battery 6 is connect with the power supply processing circuit 7, the power supply processing
Circuit 7 is connect with the CPU module 3, the clock module 1 and the wireless data transmission module 2 respectively, the power supply processing electricity
Road 7 is used to the voltage that the battery 6 provides being converted to operating voltage, for the CPU module 3, the clock module 1 and institute
It states wireless data transmission module 2 and voltage is provided.
Further include: low-voltage alarm lamp 8, the low-voltage alarm lamp 8 are connect with the battery 6, when the electricity of the battery 6
It forces down when the low pressure threshold of setting, the low-voltage alarm lamp 8 issues feux rouges.
Further include: key 9, the key 9 are connect with the CPU module 3, and the key 9 is used for the manual calibration time.
Further include: spare simulative serial port 10 is connect, the time after being used for transmission the calibration with the CPU module 3.With
Other equipment (electronic core of such as large and medium-sized electronic clock) are had to read the time and shown.
Connection relationship is specific as follows between each module of the automatic prover time device of the present invention:
Master cpu and CDMA module (wireless data transmission module)
3~6 pins of master cpu (MSP430F4152IPMR) and 32,9,23,22 pipes of CDMA module (DTM-228D)
Foot is connected (as shown in table 1), realizes under the reset control of CDMA, low power consumption control, initialization command, data read command
The reception of hair and associated responses information and data.
1 master cpu of table and CDMA module connection relationship
After powering on for the first time, master cpu initializes CDMA module by above-mentioned pin, and passes through CDMA telecommunications standard
Mobile data network obtain base station (i.e. GPS) time in real time, then on the basis of this time it is real to clock module (PCF8563T)
The data of Shi Yunhang (display or output) are calibrated, to obtain precise time.
Master cpu and clock module
Clock module (PCF8563T) can provide metastable time signal to system with independent operating, in a timing
Interior error very little, but long-play is to need to calibrate it with the GPS precision clock of CDMA.Master cpu and when
The connection pin of clock module is as shown in table 2.
2 master cpu of table and clock chip connection relationship
General daily (the 24 hours i.e. every) automatic implementation of calibration process is primary, is controlled by master cpu.User can basis
Some time in midnight or morning is arranged in the process of calibration by habit, not influence usually observing time as far as possible.
Master cpu and LCD screen
Time by calibration is sent through master cpu on LCD display (12864), and LCD can show year, month, day and time
(when, minute, second), (above-mentioned year, month, day, hour, min, second) driving LCD show that doing corresponding display changes when changing.It is main
The pin connection for controlling CPU and LCD screen is as shown in table 3.
3 master cpu of table and LCD module connection relationship
Master cpu and key
There are four keys altogether.Master cpu module and the connection relationship of four keys are as shown in table 4.
" forcing clock synchronization " is manual clock synchronization, and prover time is then immediately begun to after pressing；
" moving to right " is to move right in current LCD cursor position one, defaults to Far Left one；
"+1 " is that the digital loop on present cursor position is added 1,10 systems；
" determination " is to confirm current amended time value.
4 master cpu of table and key connection relationship
Master cpu and spare simulative serial port
" spare simulative serial port " in Fig. 1 is in order to which what is be likely encountered in the future needs to reserve the case where clock signal teletransmission
Emulated Serial Ports.Master cpu module and the connection relationship of spare simulative serial port are as shown in table 5.
5 master cpu of table and spare analogue simulation serial ports connection relationship
Master cpu and indicator light
" clock synchronization indicator light " and " low-voltage alarm lamp " in Fig. 1 is referred to as " system work light ", is combined with one
Formula light emitting diode (red-green) is realized, includes driving circuit.
The connection relationship of master cpu and LED light is as shown in table 6.
6 master cpu of table and status display LED1 connection relationship
The present invention also provides a kind of automatic prover time method, the method is applied to above-mentioned automatic prover time dress
It sets, as shown in Figure 2, which comprises
Obtain current time；It obtains clock chip and exports real-time time
Obtain GPS time；CDMA module obtains base station clock；
Judge the error of the current time and the GPS time whether within the scope of error threshold；When master cpu is read
Between and compared with the clock chip time；
If so, showing the current time；
If it is not, the current time according to the CPS time calibration, and show the current time after calibration.
Specific work process is as follows:
Acquisition time
When powering on (or artificial strong Self-resetting, pressure clock synchronization) for the first time, master cpu activates CDMA module first, then passes through
Port is operated on it using the AT command set that CDMA module defines, and the AT instruction for issuing read access time is current to obtain
Time.Acquisition time instruction is as follows:
AT+CCTI=?
Returned data format:
+CCTI:120189204212333OK
16 system of data bit (HEX) directly returned:
0D 0A 2B 43 43 54 49 3A 20 31 20 32 30 31 34 20 39 20 31 39 20 34 20
32 31 20 32 33 20 33 33 0D 0A 0D 0A 4F 4B 0D 0A*/
Then the time has been included in returned data: 21 divide 23.33 seconds on September 20,4 2018.Using program to upper data
It is intercepted, the current time can be obtained.
Refresh the (/ calibration) time
After obtaining current time, it is compared immediately with current run time provided by clock module.In clock module
When portion's time walks certainly, because there is backup power source (3V button cell), time precision and continuity are relatively available
It ensures, but by (such as 24 hours) operation for a long time, is to be likely to occur certain walking time error, so needing with the CDMA time
It is calibrated.
If error is more than 5~10 seconds (can set according to actual needs), master cpu can with the time newly obtained to original when
Between be updated, otherwise master cpu will ignore this time read time.
Clock module is configured to the mode per second for generating and once interrupting, i.e., per second to export a low electricity from its 3rd pin
It puts down to master cpu, wakes up master cpu, read the time data of clock module by its 5th foot (SDA) by master cpu.
The mode that time (data) reads uses the form of I2C, and master cpu exports serial clock arteries and veins to its 6th foot (SCL)
Signal is rushed, and presses the reading data of its prescribed form from SDA foot.It is organized into after time value compared with the CDMA time by master cpu
To decide whether to calibrate.The execution of this subprogram terminates if error very little does not need calibration；If necessary to calibrate then
By (I2C mode) the write clock module in the same way of CDMA time at this time, from the new time of clock module
Point, and start it from when walking.Meanwhile master cpu send the time at this time to remove LCD display.
Show the time
Master cpu will give LCD screen the time and show, be realized in the form of parallel data (D0~D7).
Either time calibration when still normally walk in the case of, for refresh time, master cpu completes below
Task: make LCDEN (LCD is enabled) first and WR (writing LCD) is effectively, then by time data according to year, month, day, hour, min, second
Mode gradually send to the P2 mouth of master cpu, then the original time is refreshed and is come out at new time showing by LCD screen.
The main contents of initialization
System electrification is configured when initializing firstly the need of the communication baud rate to master cpu and CDMA, used
It instructs as follows:
Network state is inquired first:
Instruction: AT+CAD?
Response :+CAD:1
OK
Illustrate that network state is available, return value is 0 or 3, and network is unavailable.
Then baud rate (selecting 9600 here) is set:
Instruction: AT+ipr=9600
Secondly clock module is initialized
After this partially-initialized mainly reads the CDMA time by master cpu, by each pin above-mentioned to clock module
Associated inner register be written newest correct time, make interrupt output effectively, start it and voluntarily run.
System parameter settings
Mainly system time is manually set or is forced clock synchronization by 4 keys.Master cpu judges key assignments and holds
The corresponding function of row.
System battery selection
By the power consumption coarse analysis to each link, such as:
The average current of clock chip is 1.1uA.Each SCLK period 2us that clock chip defines, it is contemplated that master cpu
Instruction cycle, relatively reasonably read clock SCLK period select in 10us, 7 time registers, 4 alarm registers
(least favorable situation), totally 11 registers need to read, and 11*8=88 ≈ 90, read access time 90*10us=900us, then
In addition other processing times such as interrupt response of CPU, add up to about 1000us, i.e. 1ms.I.e. according to clock chip application each second
Primary to interrupt, master cpu accepts interruption and reads real-time time value, needs the time of 1ms altogether, then proceedes to suspend mode, and master control
CPU is in addition to work 1ms per second, it is also necessary to which daily clock synchronization is primary, during which works about 40 seconds and (completes the detection such as line under-voltage during this
Work), so 24 hour working time are as follows: 86400*1ms=86.4s, adding up to the working time is 126.4s, in these times
Operating current about 230uA, within the remaining time then in a dormant state, electric current is about 1uA.Therefore:
CDMA module, 600 milliamperes of electric current when work, work is primary daily.About 30 seconds.Then:
Along with comprehensively considering to LCD display, power supply chip 7805 and 1117, total current drain (per second) ≈
0.33*3≈1mA。
Selecting the battery (18650ICR2P) of 3600mAH, then the time that can work normally is about 3600 hours, i.e., and 5
Month.
The main program process of apparatus of the present invention as shown in figure 3, system initialization containing the initialization to CDMA module, LCD
Initialization, the current time for reading clock chip, the time that reading needs to calibrate time set from FLASH, battery are low
The electric energy detection time (default daily noon is primary, primary at dusk), empty low electric energy alarm times；
After initialization, CPU reads the current time of CDMA and to the time in clock module while having done school
Standard, makes accurate clock, is later exactly whenever whole second (point, when ...) clock module can issue in primary to CPU
Disconnected request, CPU reads module time, and send to LCD；
Between key processing and time alignment epoch, the display of time can suspend, during time calibration, the flashing of clock synchronization indicator light
(once per second is dodged three times)；
The interrupt requests of whole second are all to wake up CPU to clock chip every time, after data are read and send LCD by CPU, continue into
Enter dormant state, to reach maximum power saving；
Pass through opening timing device (second timing) in low electric energy alert program and interrupt external portion's LED light using it and is flashed
Control.
Fig. 4 is keystroke handling program chart.As shown in figure 4, when having by key pressing, program attention key processing subroutine.
After a small delay debounce (about 10 milliseconds), judge whether this key pressing again.Interference letter is regarded as if not
Number, it returns to main program and then executes corresponding key assignments program if it is confirmed that being to have key pressing, then return to main program.
Wherein, 1 number key is " forcing clock synchronization ", is pressed this key, and system starts to start CDMA module, and reads and work as from CDMA
The preceding time, the time being currently running in refresh clock module, and bring into operation and show that (concrete operations are referring to figure from the new time
5 relevant operations and function stated)；
2 number keys are " moving to right ", i.e., current cursor in LCD screen (or focus) is one mobile to the right (circulation), and make coke
Number on point flashes, and shows date, format in LCD screen are as follows:
Focus can be in upper row ring shift right；
3 number keys are "+1 ", i.e., the datacycle in current focus are added 1 (becoming 0 when greater than 9)；
4 number keys are the current amended data write clock mould of " determination ", that is, the modification made before confirming, and general
Block brings into operation (programs such as logicality mistake, such as input 3018,13 months, 25 points ignore this modification automatically).
The time of this modification will be capped when automatic clock synchronization next time.
Fig. 5 is time calibration program chart, as shown in figure 5, in order to reduce power consumption, CDMA module is usually to be in suspend mode shape
State, the level change for passing through CDMAPower before each (day) read access time is waken up, it is then sent to it AT instruction,
The current GPS standard time in CDMA module is read, then enables its suspend mode after reading successfully immediately.
Then current time is written to clock chip.First according to the communication of the frequency of crystal oscillator rate and CPU and CDMA
The factors such as rate (9600bps), time for each instruction, estimation write-in delay, make the appropriate adjustments current time, then will adjustment
Good time write clock module.The interruption for opening clock module allows, and CPU oneself enters suspend mode.
Fig. 6 is low electric energy alert program block diagram, as shown in fig. 6, this partial function only executes one when master cpu is waken up
It is secondary；
Supply voltage (3.3V) is connected to the 11st foot of master cpu, which is defined as analog input pin；
When detecting output voltage lower than some limit value (such as 3.1V, 3.2V), into alert program entrance (temporary close
Suspend mode allows, and allows to open by suspend mode after having executed alarm)；
Preset alarm lamp flashing times are 10 times；
Flashing times by second Timer Controlling (per second flashing primary), flashing times to subtract one not complete in this section of program
At, and completed in following second timer interrupt routine, until having subtracted；
The mark (alarm condition position) for thering is low pressure whether to alarm in main program, set after the completion of above procedure executes,
It is reset when initialization, is also reset before entering suspend mode every time, avoid repetition of alarms and fail to report.
Fig. 7 is low electric energy alert program block diagram.As shown in fig. 7, this subprogram is timed to and causes in second timer
The interrupt service routine executed when interruption；In the interrupt service program in addition to doing necessary place to interrupt source and interrupt status
Reason is outer, can also negate the state of red alarm LED light once, while subtracting one for flashing remainder.
The configuration process of apparatus of the present invention is as follows:
1. battery is installed to battery inside；
2. the antenna of CDMA module is reliably installed, the connection with single-chip microcontroller is realized by serial ports；
3. it is 9600bps that single-chip microcontroller and the traffic rate of CDMA module, which is arranged, in system default；
4. the daily clock alignment time is 2:00 AM (this time, the few needed to see the time), after reading the time
Compared with current time, when error be more than pre-set limit (such as 5 seconds) when if time started calibration process, otherwise not school when；
5. low battery time of fire alarming is 13 points and 19 points (easily causing people to pay attention to)；
6. use this time set for the first time, current time need to be configured, when can be manually entered by four keys
Between, the CDMA time can also be read in a manner of initialization by re-powering to system reset.
The specific embodiment provided according to the present invention, the invention discloses following technical effects: (1) can legally from
Cdma base station is free, obtains the GPS standard time indirectly.Because of the wireless base station of present cellular carrier (such as telecommunications, movement)
The gregarious each place firmly of domestic someone can be covered, almost without blind area, therefore, it is reliable for obtaining GPS clock from base station
, it is stable, non-blind area；
(2) also there is timer internal and LCD display unit simultaneously, normal timing and can indicate the time；
(3) has the function of the automatic clock synchronization of timing, the time calibrates automatically, does not need manual intervention；
(4) low power dissipation design is used, so that the device can be with long-play；
(5) on the whole, the present apparatus has the characteristics that simple installation, automatic correcting time, without operating cost.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of automatic prover time device characterized by comprising
Clock module, for showing current time；
Wireless data transmission module, for obtaining GPS time by the mobile data network of CDMA telecommunications standard；
CPU module is connect with the clock module and the wireless data transmission module respectively, for according to CPS time school
The quasi- current time；
LED display is connect with the CPU module, for showing the time after calibrating.
2. automatic prover time device according to claim 1, which is characterized in that the CPU module includes:
Setting apparatus, for setting error threshold；
Calculator is connect with the clock module and the wireless data transmission module respectively, for calculate the current time with
The error of the GPS time；
Comparator is connect with the setting apparatus and the calculator respectively, for the error and the error threshold
Size, and comparison result is sent to calibrator；
Calibrator, for calibrating the current time according to the comparison result.
3. automatic prover time device according to claim 1, which is characterized in that the model of the CPU module
MSP430。
4. automatic prover time device according to claim 1, which is characterized in that the model of the wireless data transmission module
DTM-228D。
5. automatic prover time device according to claim 1, which is characterized in that further include: clock synchronization indicator light, it is described right
When indicator light connect with the CPU module, the clock synchronization indicator light issues green light in the CPU module prover time.
6. automatic prover time device according to claim 1, which is characterized in that further include: battery and power supply processing
Circuit；The battery is connect with the power supply processing circuit, the power supply processing circuit respectively with the CPU module, it is described when
Clock module and wireless data transmission module connection, the power supply processing circuit is for being converted to the voltage that the battery provides
Operating voltage provides voltage for the CPU module, the clock module and the wireless data transmission module.
7. automatic prover time device according to claim 6, which is characterized in that further include: low-voltage alarm lamp, it is described
Low-voltage alarm lamp is connect with the battery, when low pressure threshold of the voltage of the battery lower than setting, the low-voltage report
Warning lamp issues feux rouges.
8. automatic prover time device according to claim 1, which is characterized in that further include: key, the key and institute
CPU module connection is stated, the key is used for the manual calibration time.
9. automatic prover time device according to claim 1, which is characterized in that further include: spare simulative serial port, with institute
State CPU module connection, the time after being used for transmission the calibration.
10. a kind of automatic prover time method, which is characterized in that the method is applied to described in claim 1-8 any one
Automatic prover time device, which comprises
Obtain current time；
Obtain GPS time；
Judge the error of the current time and the GPS time whether within the scope of error threshold；
If so, showing the current time；
If it is not, the current time according to the CPS time calibration, and show the current time after calibration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110430633A (en) * | 2019-07-19 | 2019-11-08 | 横店集团得邦照明股份有限公司 | A kind of implementation method and its system of real-time synchronization simulation solar illumination control |
| CN111240184A (en) * | 2020-02-21 | 2020-06-05 | 华为技术有限公司 | Method for determining clock error, terminal and computer storage medium |
| CN112147924A (en) * | 2020-08-27 | 2020-12-29 | 航天东方红卫星有限公司 | High-precision program-controlled task management system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718857A (en) * | 2008-10-09 | 2010-06-02 | 精工爱普生株式会社 | Satellite signal reception device, timekeeping device, and satellite signal reception method |
| CN104102125A (en) * | 2013-04-10 | 2014-10-15 | 吴国忠 | Signal transmitting device for miniature radio-controlled watch |
| CN204287779U (en) * | 2014-11-06 | 2015-04-22 | 西京学院 | A kind of associating precision time service system |
| CN104749941A (en) * | 2015-02-04 | 2015-07-01 | 烟台钟表研究所有限公司 | Control method of pointer type CDMA quartz clock |
| CN104932248A (en) * | 2015-07-03 | 2015-09-23 | 烟台钟表研究所有限公司 | Control method of pointer type CDMA quartz clock |
| CN107229218A (en) * | 2017-06-20 | 2017-10-03 | 中通客车控股股份有限公司 | The multiple clock sources correction device and method of a kind of vehicle-mounted TBOX systems |
| JP2018081072A (en) * | 2016-11-08 | 2018-05-24 | セイコーエプソン株式会社 | Electronic watch |
| US20180203419A1 (en) * | 2017-01-17 | 2018-07-19 | Seiko Epson Corporation | Electronic timepiece |
-
2018
- 2018-12-17 CN CN201811542141.0A patent/CN109521667A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718857A (en) * | 2008-10-09 | 2010-06-02 | 精工爱普生株式会社 | Satellite signal reception device, timekeeping device, and satellite signal reception method |
| CN104102125A (en) * | 2013-04-10 | 2014-10-15 | 吴国忠 | Signal transmitting device for miniature radio-controlled watch |
| CN204287779U (en) * | 2014-11-06 | 2015-04-22 | 西京学院 | A kind of associating precision time service system |
| CN104749941A (en) * | 2015-02-04 | 2015-07-01 | 烟台钟表研究所有限公司 | Control method of pointer type CDMA quartz clock |
| CN104932248A (en) * | 2015-07-03 | 2015-09-23 | 烟台钟表研究所有限公司 | Control method of pointer type CDMA quartz clock |
| JP2018081072A (en) * | 2016-11-08 | 2018-05-24 | セイコーエプソン株式会社 | Electronic watch |
| US20180203419A1 (en) * | 2017-01-17 | 2018-07-19 | Seiko Epson Corporation | Electronic timepiece |
| CN107229218A (en) * | 2017-06-20 | 2017-10-03 | 中通客车控股股份有限公司 | The multiple clock sources correction device and method of a kind of vehicle-mounted TBOX systems |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110430633A (en) * | 2019-07-19 | 2019-11-08 | 横店集团得邦照明股份有限公司 | A kind of implementation method and its system of real-time synchronization simulation solar illumination control |
| CN111240184A (en) * | 2020-02-21 | 2020-06-05 | 华为技术有限公司 | Method for determining clock error, terminal and computer storage medium |
| CN111240184B (en) * | 2020-02-21 | 2021-12-31 | 华为技术有限公司 | Method for determining clock error, terminal and computer storage medium |
| CN112147924A (en) * | 2020-08-27 | 2020-12-29 | 航天东方红卫星有限公司 | High-precision program-controlled task management system |
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